1102 Card tricks from permutations
The rearrangementω=ωm,n
Pick up the cards along the columns, from top to bottom, and from left
to right. Then rearrange them in the standard order.
Form=n, this rearrangement is the reflection in the main diagonal.
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16